M5lp 1305 47 Bolt On Performance Hardware Long Block

Rocco completed our long-block assembly with ARP fasteners throughout, as well as a set of Ford Racing’s 1.7-ratio Cobra roller rocker arms (PN M-6564-E351); Trick Flow’s valvespring kit (PN TFS-2500100); and PRW’s 6.300-inch, chrome-moly pushrods (PN PRW-94080516300). All are available through Anderson Ford Motorsport, as well as the used market. Taking a close look at the 331, you’ll see that the three-bar identifying marks on the GT-40 heads were removed for stealth.